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The properties of nanosilica-modified asphalt cement
Petroleum Science and Technology, 2016ABSTRACTThis study aimed to investigate some engineering properties of asphalt cement modified with different percentages of nanosilica. 60/70 Penetration grade asphalt cement was modified with different percentages of nanosilica (i.e. 1, 3, and 5 wt%) and their properties were evaluated.
Hasan Taherkhani, Siamak Afroozi
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Network morphology of straight and polymer modified asphalt cements
Microscopy Research and Technique, 1997Asphalt cements are often regarded as a colloidal system containing several hydrocarbon constituents: asphaltenes, resins, and oils. The high molecular weight asphaltene particles are considered to be covered in a sheath of resins and dispersed in the lower molecular weight oily medium [Whiteoak (1990) The Shell Bitumen Handbook (Shell Bitumen UK ...
S J, Rozeveld +4 more
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Assessing Rheological Behavior of Modified Paving Asphalt Cement
American Journal of Civil and Structural Engineering, 2014The Asphalt cement is produced as by-product from oil industry in Iraq; the asphalt must practice further processing to control the percentage of its different ingredients so that it will be suitable for paving process. If such processing is not conducted, then another alternative of modifying the asphalt cement properties with additives could be ...
Saad Issa Sarsam, Ibtihal Mouiad Lafta
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Construction and Building Materials, 2017
Abstract This study evaluated the effects of two types of cationic modified asphalt emulsions, i.e. SBS modified asphalt emulsion and SBR modified asphalt emulsion, on the flow time, air content and mechanical properties of cement emulsified asphalt mortar (CEAM) at varying asphalt to cement (A/C) ratios.
Baoju Liu, Dong Liang
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Abstract This study evaluated the effects of two types of cationic modified asphalt emulsions, i.e. SBS modified asphalt emulsion and SBR modified asphalt emulsion, on the flow time, air content and mechanical properties of cement emulsified asphalt mortar (CEAM) at varying asphalt to cement (A/C) ratios.
Baoju Liu, Dong Liang
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Advanced Materials Research, 2010
In order to explore the mechanism and effect of atactic polypropylene (APP) modified asphalt felt preventing crack, which is used as interlayer between old cement concrete pavement and asphalt overlay, by dint of establishing finite element model, considering tensile modulus of the material, the authors calculated and analyzed the load, temperature and
Xiao Feng Wang, Yu Qing Yuan
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In order to explore the mechanism and effect of atactic polypropylene (APP) modified asphalt felt preventing crack, which is used as interlayer between old cement concrete pavement and asphalt overlay, by dint of establishing finite element model, considering tensile modulus of the material, the authors calculated and analyzed the load, temperature and
Xiao Feng Wang, Yu Qing Yuan
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Laboratory Investigation of Recycling for Aged SBS Modified Asphalt Cement
Pavements and Materials, 2011This research focused on the recycling of aged styrene-butadiene-styrene (SBS) modified asphalt cement. The physical properties and rheological properties of aged SBS modified asphalt cement were evaluated based on force-ductility test and Strategic Highway Research Program (SHRP) binder tests.
Tao Ma, Chen Chen, Chunlei Li
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Properties of Portland cement-modified asphalt binder using Superpave tests
Construction and Building Materials, 2011Abstract This study investigates the effect of cement additive on some properties of asphalt binder using Superpave testing methods. Six cement-to-asphalt (C/A) ratios were considered in the study: 0.05, 0.10, 0.15, 0.20, 0.25 and 0.30 by volume of asphalt binder.
Ghazi G. Al-Khateeb, Nabil M. Al-Akhras
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The microstructure evolution of cement paste modified by cationic asphalt emulsion
Advances in Cement Research, 2021Cationic asphalt emulsion (CAE) is a type of organic latex that could be used to modify cement hydration products in order to improve the performance of cement paste. In this study, different methodologies were used to investigate the influence of CAE on the process of cement hydration.
Wei Li +6 more
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Behavior of Reclaimed Polyethylene Modified Asphalt Cement for Paving Purposes
Journal of Materials in Civil Engineering, 2011The present paper deals with the procedure for modification of 80/100-paving grade asphalt cement using reclaimed polyethylene (PE) derived from low-density polyethylene carry bags collected from domestic waste. The details of the preparation of the PE-modified binder and the results on variation of binder properties with blending temperature and ...
V. S. Punith, A. Veeraragavan
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Mechanism of Interaction of Asphalt Cement with Crumb Rubber Modifier
Transportation Research Record: Journal of the Transportation Research Board, 1999The nature of the interaction process between asphalt cement and crumb rubber modifier (CRM) has not been fully understood. Two main types of mechanisms that affect the produced binder properties are reported: particle swelling and degradation (devulcanization and depolymerization).
Magdy A. Abdelrahman +1 more
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